Drying-kiln.



E. A. HALLAMY DRYING KILN.

APPLICATION FILED fmm, 1914.

L 19,595. Patented neo. 1, 1914.

\ nomononono L "e QL/mu @J2/@am wor-vz eg Ses,

affine iiooring boards or -with a partiel covering of ooring boards.

The downiifard. circulation of air through 'the wall; ways is induced oydownwardly directed jets of steam which Lire discharged by horizontalpip-is or equivalent steam con ducting devices 7. The pipes 7 airearranged adjucciit-tlie side wsllsof theiriln room :ind are provided ontheiilltiiider sides with steziin discharge openings or nozzles 8. Thespriciug of the pipes i from the sides oi' the stack, and the angie ofthe discharge openings or nozzles, is selected whereby the steam whichis discharged in jets of considerable intensity :from seid pipes isdirected downwardly in such manner that itpzisses through the floors 6and in relation to the ,heaters 1i, with out having' any substantial.iirect action on the lumber. iQhe sir which is caused to circuietedownwardly by the downwardly directed jets of steam uniforii'ily iniieswith seid steam, und the steam or moisturedsden air passing under the1doors 5 circulates in relation to the coils il, some of the sir passingunder and upwardly through these coils, and seine of the sir passingdirectly over tliese'coiis, The air which posses over the coils Lireducesto sonic extent the rent which rises from the coils, notsuiiicien'tly to retard the drying operation, but with heneliciiileffect, in that it eiiniinzites any liii bility olf cese hardening ofthe lumber. Yilhe heited sir rising from the coils and haring apercentage oil moisi-ure iii-corporateil 'therein7 pz into the ceiitrsicortion of the stuck and rises through the steelt; uni i'ornilythroughout the width 'thereoiE and with substantially uniform dryingeifeci.. The drying of the lumber is due, for yshe moet part, to thecirculation of air it the sides of the stack, since such downwardlycirculating eir reieins :i substantiai degree of heet.

lifhe improvement herein described ina y he used in connection with esteam pipe 9 er ranged shove the stach for introducing moisture inte thesir and serving the pur-- pose or the pipe 10 disclosed in my prior.Patent lilo. 1,06%116, above referred to. The steam pipe Y may he usedin lieu oi? the shields 5 shown in n'iy prior patent Kinst referred to.7

Having fully claim:

in s drying hihi, a kiln roomdieziters for the air arranged below thestrich to be dried, the kiln rooin having well; ways rit the sides ofthe stuck, the welk ways hayiiig skeleton iioors, and steam pipeszirrzingeil adjacent the sides of the kiln rooni and in said walk. ways,said steam pipes having openings :dong their underside through whichiets ot stcein :ire delivered downwardly, the downward of steam inducings, dowi'iwerd circulation of air through the 'Grilli ways and causingihe downwardly circulziting nir to through the skeleton iloors :ind `inrele tion to seid lumiere:7 the steam pipes being so .locatedrelativ-ely to the stach olf lumber that the sturen in its downwardcirculiiiioin eli'ect on the smid has no direct drying relatively te thelumber and being so located 4heaters that 'the moisture introdiufrfdtherehy the sur luis no retarding eii'cct on the or ying operation 'intestimony whereof i have hereunto set my hand in presence of twsubscribing wil.- nesses.

EDE/EEN A. EiriliLii-rvi.

"iii/fis, imm' r1 ELL,

described my invention l

